{
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  "boundary": "P",
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  "instance_id": "J1J2/square_64_P_0.55",
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      "reference": "[paper](https://journals.aps.org/prb/abstract/10.1103/PhysRevB.104.045123)",
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  "url": "https://qmbl.org/i/J1J2/square_64_P_0.55/",
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}